בּבה bâbâh baw-baw' Feminine active participle of an unused root meaning to hollow out; something hollowed (as a gate), that is, the pupil of the eyeKJV Usage: apple [of the eye].
Brown-Driver-Briggs' Hebrew DefinitionsBDB897 בּבה 1. the apple (pupil) of the eye Origin: active participle of an unused root meaning to hollow out TWOT: 196 Parts of Speech: Noun Feminine